Horowitz, A., & Dantas, H. da S. (2024). The geochemistry of minor elements in Pernambuco soils. I. Manganese in the Zona da Mata and Sertão. Pesquisa Agropecuaria Brasileira, 1(1), 383–390. https://doi.org/10.1590/S1678-3921.pab1966.v1.18051